One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6,9,12)(7,13,15,10)(8,16,17,11)(14,18,20,19)(21,22,26,30)(23,27,32,38)(24,28,35,41)(25,29,36,42)(31,37,43,47)(33,39,45,49)(34,40,46,50)(44,48,51,52)(5,7)(6,10)(8,14)(9,15)(11,18)(12,13)(16,19)(17,20)(23,31)(24,34)(25,36)(27,37)(28,40)(29,42)(32,43)(33,45)(35,46)(38,47)(39,49)(41,50) involution — undirected(1,2,3,4)(21,23,25,31,26,32,36,43)(22,27,29,37,30,38,42,47)(24,33,34,44,35,45,46,51)(28,39,40,48,41,49,50,52)(5,8,9,17)(6,11,12,16)(7,14,15,20)(10,18,13,19)(23,32)(27,38)(31,43)(33,45)(37,47)(39,49)(44,51)(48,52)(7,15)(10,13)(14,20)(18,19)(21,24,25,34,26,35,36,46)(22,28,29,40,30,41,42,50)(23,33,31,44,32,45,43,51)(27,39,37,48,38,49,47,52)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.